MATHEMATICS MIDDLE SCHOOL

Which of the following expressions are equivalent? Justify your reasoning.4√x3

1
x−1

10√x5•x4•x2

x
1
3
•x
1
3
•x
1
3

Answers

Answer 1
Answer:

Answer:

b and d

Step-by-step explanation:

b. 1/x^-1

=(1/x)^-1

=x

d. x^1/3 * x^1/3 * x^1/3

=x^1/3+1/3+1/3

=x^3/3

=x^1

=x....

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Determine the mechanical energy of this object: a 1-kg pendulum has a speed of 2 m/s at a height of 1 meter.

Answers

I am going to help you using physics......

Mechanical Energy = Potential Energy + Kinetic energy (or vice versa)

ME = PE + KE

PE = mgh ( m= mass; g = gravity constant which is 9.81; h = height)
       = (1kg)(9.81)(1m)
PE = 9.81

KE = 1/2mv^2  (m = mass)(v = velocity)
       = 1/2(1 kg)(2 m/s^2)
       = (1/2)(4)
KE = 2


ME = KE + PE
ME = 9.81 + 2
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hope this helps :)

Answer:11.8j

Step-by-step explanation:

Which decimal is equal to 7/10?

A. 0.71

B. 0.7

C. 0.07

D. 0.071

Answers

The answer is B) 0.70
7/10 = 7 tents
7 tenths = B (0.7)
Read the fraction to decimal

OR

7/10 = 70/100 = 70% = 0.70 = 0.7

OR

Divide 7 by 10

The area of a wall mural is 299 square feet. The height of the mural is 13feet. What is the length of the mural?

Answers

length x width = area
______________________
13 x ? = 299
299 ÷ 13 = 23
________________
Length = 23 feet
the length would be 23 
because you divide 299 into 13 to find what the other lengths would be and you get 23
to check that you do 23*13 and get 299

Describe how you can use a 30 cm ruler to measure ribbon for each length

Answers

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Answers

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Answers

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x = 10 . 40
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